OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:fa:e6:fe:3b:42:aa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:52:6c:e5:81:5e:97
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:2a:e9:57:eb:70:63
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:6d:75:f3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:6d:75:f3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
